Minimal Dark Matter predictions for galactic positrons, anti-protons, photons

TL;DR

This paper predicts the energy spectra of positrons, anti-protons, and photons from Minimal Dark Matter annihilations, highlighting distinctive signals at multi-TeV energies that upcoming cosmic ray experiments can detect.

Contribution

It provides unambiguous predictions for cosmic ray fluxes from Minimal Dark Matter, emphasizing the impact of multi-TeV masses and Sommerfeld enhancement on observable signals.

Findings

Distinctive signals above background at multi-TeV energies

Predictions are robust with modest astrophysical boost factors

Signals are within reach of upcoming cosmic ray experiments

Abstract

We present the energy spectra of the fluxes of positrons, anti-protons and photons generated by Dark Matter annihilations in our galaxy, as univocally predicted by the model of Minimal Dark Matter. Due to multi-TeV masses and to the Sommerfeld enhancement of the annihilation cross section, distinctive signals are generated above the background, even with a modest astrophysical boost factor, in the range of energies soon to be explored by cosmic ray experiments.